a = True
b = False
c = "你好"
d = 3.14
e = 5

# 计算a+b=?
# print(a + b)   #1
# # # 计算c+d=?
# print(c + d)  # 報錯
# # 计算c*e=?
# print(c * e)   #你好你好你好你好你好
# # 计算d*b=?
# print(d*b)   #0